/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package tp2pdf.convert.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.math.BigDecimal;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import tp2pdf.convert.bean.Converter;
import tp2pdf.convert.bean.ConverterBean;

/**
 *
 * @author Danicela
 */
@WebServlet(name = "ConverterServlet", urlPatterns = {"/ConverterServlet"})
public class ConverterServlet extends HttpServlet {

    // = null et pas = new ConverterBean() car c'est le serveur d'appli qui va chercher l'implémentation de l'interface
    @EJB
    Converter converter = null;

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        response.setContentType("text/html;charset=UTF-8");
        request.setCharacterEncoding("UTF-8");

        //Aiguilleur

        String action = request.getParameter("action");
        String forward = null;
        //try {
        if(action == null)
        {
            forward = "Converter";
        }

        else if(action.equals("convert")) {
                forward = convert(request);
            } /*else if (request.getSession().getAttribute("idUser") == null) //Si on n'est pas connecté
            {
            forward = "VueAuthentification";
            }
            else //Si l'action est inconnue
            {
            forward = erreur(request);
            }
            } catch (Exception e) {
            forward = erreur(request);
            request.setAttribute("erreur", "Erreur.");
            }*/

            request.getRequestDispatcher(forward + ".jsp").forward(request, response);


        }
        // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
        /**
         * Handles the HTTP <code>GET</code> method.
         * @param request servlet request
         * @param response servlet response
         * @throws ServletException if a servlet-specific error occurs
         * @throws IOException if an I/O error occurs
         */
        @Override
        protected void doGet





        (HttpServletRequest request, HttpServletResponse response)
        throws ServletException,
        IOException

        {
            processRequest(request, response);
        }
        /**
         * Handles the HTTP <code>POST</code> method.
         * @param request servlet request
         * @param response servlet response
         * @throws ServletException if a servlet-specific error occurs
         * @throws IOException if an I/O error occurs
         */
        @Override
        protected void doPost





        (HttpServletRequest request, HttpServletResponse response)
        throws ServletException,
        IOException

        {
            processRequest(request, response);
        }
        /**
         * Returns a short description of the servlet.
         * @return a String containing servlet description
         */
        @Override
        public String getServletInfo



             () {
        return "Short description";
        }// </editor-fold>

    private String convert(HttpServletRequest request)
    {
        String amount = request.getParameter("amount");

        if ( amount != null && amount.length() > 0) {
            BigDecimal d = new BigDecimal(amount);
            request.setAttribute("amount", amount);

            BigDecimal yenAmount = converter.dollarToYen(d);
            request.setAttribute("yenAmount", yenAmount);

            BigDecimal euroAmount = converter.yenToEuro(yenAmount);
            request.setAttribute("euroAmount", euroAmount);
                
        }

        return "Result";

    }
}
